Home / 158,131.64-218,231.34-91,085.24

Finding the Fourth Proportional to 158,131.64, 218,231.34 and 91,085.24

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Solution

The fourth proportional to 158,131.64, 218,231.34 and 91,085.24 is: 125,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,131.64 : 218,231.34 = 91,085.24 : x
  2. Step 2: Convert to fraction form
    158,131.64/218,231.34 = 91,085.24/x
  3. Step 3: Cross multiply
    158,131.64x = 218,231.34 × 91,085.24
  4. Step 4: Simplify right side
    158,131.64x = 19,877,653,979.42
  5. Step 5: Solve for x
    x = 19,877,653,979.42/158,131.64
  6. Step 6: Final answer
    x = 125,703.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.